(-> person :employer :address :city) would be my pick
Vincent
On Jan 28, 4:02 pm, Mark Volkmann <r.mark.volkm...@gmail.com> wrote:
> I have a map that describes a person.
> It has a key that describes their address.
> It also has a key for their employer.
> The employer has its own address.
>
> (def person {
> :name "Mark Volkmann"
> :address {
> :street "644 Glen Summit"
> :city "St. Charles"
> :state "Missouri"
> :zip 63304}
> :employer {
> :name "Object Computing, Inc."
> :address {
> :street "12140 Woodcrest Executive Drive, Suite 250"
> :city "Creve Coeur"
> :state "Missouri"
> :zip 63141}}})
>
> Is this the best way to retrieve the employer city?
> (reduce get person [:employer :address :city])
>
> Is this the best way to get a new map where the city is changed?
> (update-in person [:employer :address :city] (fn [old & args] "Clayton"))
> I can't get this to work with #("Clayton") in place of the anonymous
> function above.
>
> --
> R. Mark Volkmann
> Object Computing, Inc.
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